机械设计毕业论文中英文翻译

The theme of this design is the design, together with its CAD/CAM, of the process and tooling equipment for the rocker shaft bed . This design task is from Chaoyang Diesel Engine Com., Ltd. The purpose of this design is to complete the mold design work for the rocker shaft bed of 195 Diesel Engine, the design of the process flow and process cards for the development of the rocker shaft bed, and the design of some special fixtures for certain processes. We used the Three-dimensional modeling software Pro / E to complete the mould design work, including the modeling work of the parts and blank parts using the part module of the software; the design work of the Investment Casting mold, including the parting surface, the injection systyem, the ejection mechanism, the convex and concave mold, mold base, etc.. Completed the mold assembly drawings with engineering drawings module of Pro / E and CAXA software. Made out the process plan for the part development, including the processing methods, the processing route, the determination of machining allowance, and then calculated the process parameters according to the process plan to produce the process cards. We designed two sets of special milling fixture, one set of special drilling fixture. After analysing, selecting, and design, we finished its engineering drawing with CAXA software.The difficult points of the design are the moulds and fixtures. We finally solved these problems via a large amount of research work and the teacher's assistance, and successfully accomplished this design task.Keywords: solid modeling; mold; fixture; technique 完全是自己翻译的，我是搞机械设计的，学习了。谢谢楼主提供的翻译练习机会。

在上次的基础上做了对应的调整和适当的修改。望分析体会，以求能有所收获！AbstractThe article is entitled as Process Tooling Design and CAD/CAM of the Rocker Axle Base from Chao Yang Diesel Co.,Ltd.. The design aims to complete the module design of 195 diesel rocker axle base, the draw up of its processing line and procedure card and the design of manufacturing special fixture, etc.Model-designed by the 3D shaping software Pro/E, the content consists of the following: solid mold which spares and blanks are built by the spare mold, design for the investment casting molds involving the analysis, calculation and design of mouldjoint, gating system, ejecting machine, punch-cum-blanking die and the die base,etc. Then complete the final assembling drawing according to the engineering module and the CAXA electronic drawing board. Establish the spares processing techinical procedure,including the select of the processing method, the sketch out of the processing line and the definition of the maching allowance. Then calculate the techinical parameter and establish corresponding process card in light of the technical schedule. Design two sets of special milling machines and one set of special drilling machine. After the analysis, select and design, finally accomplish the engineering drawing by use of CAXA electonic sketch board.The design difficulty is the jigs and the moulds. After refering to plenty of documents, settle down these problems and round off the design under the guide of teachers.Key Words: solid model, module, jig, procedure

The thermodynamic calculation is the basis of the compressor calculation. With the help of the compressor-aided design system, the ordinary compressor is able to speed up its progress in calculation, which in turn reasonablizes the design; while the thermodynamic calculation of non-oil lubrication compressor caused errors or inaccuracy when pictures are retrieved by hand and figures are not best chosen. It is towards this problem that the compressor-aided design system for the thermodynamic calculation of non-oil lubrication compressor is made by digitalizing all the pictures and figures. This system will simplize the calculating process of the thermodynamic non-oil lubrication compressor, enable to select data on line, retrieve pictures and figures intelligently, output, save and print them and improve the accuracy and reliability of the calculating parameters as well.Key words：compressor , thermodynamic calculation, aided design system, non-oil

Modern various machine and equipment are more than on the gear reducer, generally USES bearing hole processing, and currently 1ta series boring coordinates are in single points, so in mass production to ensure its hole spacing tolerance, and low efficiency.A fine molding machine is a special machine, when using a series of molding method. Once processed clamping workpiece, hole spacing in design, and when the machine has two of the coaxial when spindle box, while processing by rail, which not only ensures the transmission distance between accuracy, but also guarantee the hole, and greatly improve the coaxial tolerance of machining efficiency. Can realize automation, production line. It meets the modern production accuracy and efficiency.This paper introduced a series of molding machine structure, working principle and control method, and automatic assembly line control principle and realization method.Keywords: a large series boring

electrical and hydraulic compound nanopositioner This design is in the motor - driven magnetroheological on the basis of the installation of hydraulic system so that it is common to give impetus to magnetroheological line round feed motion. the design of complex nanopositioner motor part by the ball screw drives hydraulic part by hydrocylinder actuaton magnetroheological, by the second part of the connection. design of the main stage of the mechanical structure design, appreciating and hydraulic system works.There are several aspects: magnetroheological of the transmission mechanism design, mainly the application of the ball screw; magnetroheological blockmodel laryngofibroscopy design, understanding, take full account of the main controdiction, grpwth ystems; control system design, familiarize its application stepmotor feed can be accurate location but there are shortcomings is inadequate, so the output will be considered as a hydraulic motor power source and stepmotor of compound feed system hydraulic feeding, although they could not be located, but with high output force, pre-language educatiuon, so that the feed motion can accurately stable.so that productivity has risen considerably.